FR58174E - Systèmes radiotélégraphiques à onde porteuse - Google Patents

Systèmes radiotélégraphiques à onde porteuse

Info

Publication number
FR58174E
FR58174E FR58174DA FR58174E FR 58174 E FR58174 E FR 58174E FR 58174D A FR58174D A FR 58174DA FR 58174 E FR58174 E FR 58174E
Authority
FR
France
Prior art keywords
radiotelegraph
systems
carrier wave
wave
carrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
English (en)
Inventor
Victor John Terry
Thomas Frederick St Hargreaves
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR58174E publication Critical patent/FR58174E/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/38—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member sealed by a packing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/16—Frequency regulation arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
FR58174D 1946-02-05 1947-12-31 Systèmes radiotélégraphiques à onde porteuse Expired FR58174E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3600/46A GB611626A (en) 1946-02-05 1946-02-05 Improvements in radio-telegraphy

Publications (1)

Publication Number Publication Date
FR58174E true FR58174E (fr) 1953-09-29

Family

ID=9761388

Family Applications (2)

Application Number Title Priority Date Filing Date
FR958675D Expired FR958675A (fr) 1946-02-05
FR58174D Expired FR58174E (fr) 1946-02-05 1947-12-31 Systèmes radiotélégraphiques à onde porteuse

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR958675D Expired FR958675A (fr) 1946-02-05

Country Status (4)

Country Link
US (1) US2509212A (fr)
FR (2) FR58174E (fr)
GB (1) GB611626A (fr)
NL (1) NL78388C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844589A (en) * 1971-10-12 1974-10-29 Pont A Mousson Locking device for pipe elements

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2692330A (en) * 1950-05-22 1954-10-19 Rca Corp Noise reduction arrangement
US2995627A (en) * 1954-04-29 1961-08-08 Louis L Lakatos Automatic frequency control for fsk telegraph receiver
US3346814A (en) * 1964-07-29 1967-10-10 Hughes Aircraft Co Dual loop demodulator including a phase lock loop and an afc loop
GB2109201B (en) * 1981-10-26 1985-03-27 Philips Electronic Associated Direct modulation fm receiver
JPS6119261A (ja) * 1984-07-05 1986-01-28 Toshiba Corp 周波数変換回路

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1642173A (en) * 1921-03-16 1927-09-13 Rca Corp Radio signaling system
US2108899A (en) * 1934-10-30 1938-02-22 Rca Corp Automatic volume control
GB480289A (en) * 1937-03-09 1938-02-21 Cable & Wireless Ltd Improvements relating to wireless telegraph systems
US2232390A (en) * 1938-04-27 1941-02-18 Rca Corp Automatic frequency control
US2253832A (en) * 1939-10-14 1941-08-26 Rca Corp Signaling
BE479407A (fr) * 1940-09-28
US2316017A (en) * 1941-05-23 1943-04-06 Rca Corp Frequency control
US2341649A (en) * 1941-05-23 1944-02-15 Rca Corp Frequency control
US2433350A (en) * 1941-07-11 1947-12-30 Int Standard Electric Corp Superheterodyne radio receiver having compensating means for frequency drift of the received carrier wave
BE481301A (fr) * 1944-05-23
US2401355A (en) * 1944-07-07 1946-06-04 Bell Telephone Labor Inc Radio receiving system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844589A (en) * 1971-10-12 1974-10-29 Pont A Mousson Locking device for pipe elements

Also Published As

Publication number Publication date
FR958675A (fr) 1950-03-17
GB611626A (en) 1948-11-02
US2509212A (en) 1950-05-30
NL78388C (fr)

Similar Documents

Publication Publication Date Title
FR938812A (fr) Systèmes de radio-guidage
FR929389A (fr) Systèmes de modulation
FR941062A (fr) Systèmes de communication
FR975784A (fr) Systèmes de modulation
FR926571A (fr) Systèmes générateurs de fréquence
FR58174E (fr) Systèmes radiotélégraphiques à onde porteuse
FR951078A (fr) Systèmes radiogoniométriques
FR938811A (fr) Systèmes oscillateurs
FR57758E (fr) Systèmes de balises radio-électriques
FR951576A (fr) Systèmes radiogoniométriques
FR942930A (fr) Systèmes de radio-balises
FR950746A (fr) Systèmes de communications duplex à fréquence porteuse
FR954364A (fr) Systèmes de transmission à longue distance
FR928545A (fr) Systèmes de modulation
FR940683A (fr) Systèmes téléphoniques
FR57622E (fr) Perfectionnements aux oscillateurs à ondes ultra-courtes
FR941345A (fr) Systèmes radiogoniométriques
FR926560A (fr) Systèmes hyperfréquences
FR972214A (fr) Systèmes télégraphiques à courants porteurs
FR976933A (fr) Systèmes de télémesure
FR937869A (fr) Systèmes de cristaux piézoélectriques
FR939062A (fr) Systèmes redresseurs
BE482469R (fr) Systèmes radiotéléphoniques
FR943692A (fr) Systèmes de télécommunications
FR930824A (fr) Systèmes téléphoniques